77041407 has 4 divisors (see below), whose sum is σ = 102721880. Its totient is φ = 51360936.

The previous prime is 77041387. The next prime is 77041439. The reversal of 77041407 is 70414077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70414077 = 3 ⋅23471359.

It is not a de Polignac number, because 77041407 - 2¹⁴ = 77025023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77041477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12840232 + ... + 12840237.

It is an arithmetic number, because the mean of its divisors is an integer number (25680470).

Almost surely, 2^77041407 is an apocalyptic number.

77041407 is a deficient number, since it is larger than the sum of its proper divisors (25680473).

77041407 is a wasteful number, since it uses less digits than its factorization.

77041407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25680472.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 77041407 is about 8777.3234530807. The cubic root of 77041407 is about 425.5083320080.

The spelling of 77041407 in words is "seventy-seven million, forty-one thousand, four hundred seven".